Weather System
When the system failed in July 2016, the following atmospheric instruments were in place to measure wind speed, wind direction, air temperature, and relative humidity at 19 m and 30 m above the water. Wind was measured using two sensors at 19 m with different exposures (NW and SE corners) to account for the extreme airflow distortion around the tower superstructure. Atmospheric pressure was also measured at 19 m.
| Variable | Instrument | Height (m) | Units |
|---|---|---|---|
| Air Temperature | Vaisala HMP 45C  |
19, 30 | °C |
| Dewpoint Temperature | Vaisala HMP 45C |
19, 30 | °C |
| Relative Humidity | Vaisala HMP 45C |
19, 30 | % |
| Atmospheric Pressure | Setra 278  |
19 | mB |
| Wind Speed/Direction | RM Young Marine  |
19, 30 | m/s / °N |
| Wind Speed/Direction (Sonic) | Gill 2D WindSonic  |
19 | m/s / °N |
